If you are asking how to file a "Married Filing Jointly" return in TurboTax, one of you will start the return. If one of you used TurboTax last year, that person can use their account to start. If you both used TurboTax last year, only one of you can keep the account from last year.
As you begin answering the interview questions in the "My Info" section, you will report that you are married and start a joint return.
All documents for both or you are reported on one return and you both share all dependents you may have between the two of you.
The two of you are considered as one taxpayer on a Federal tax return.
Filing "Married Filing Jointly" is usually better for the taxpayer than filing "Married Filing Separately" unless there is a particular reason not to file jointly.
